介绍了磁选方法预处理原料，制备适合于永磁铁氧体生产的合格超纯铁精矿。
The pretreatment of the raw material by magnetic separation to prepare the qualified ultrapure iron concentrate for producing permanently magnetic ferrite is described.
介绍了磁选方法预处理原料，制备适合于永磁铁氧体生产的合格超纯铁精矿。
The pretreatment of the raw material by magnetic separation to prepare the qualified ultrapure iron concentrate for producing permanently magnetic ferrite is described.
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